What Happened To This 1999-D Delaware Quarter

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Author	Replies: 9 / Views: 1,366
beader1986 New Member United States 1 Posts	Posted 07/24/2020 10:31 pm I found this Delaware quarter in the bottom of a box of office stuff. Not sure what happened to it, but it looks like the edge has been removed or something. Any ideas? Report this Post to the Staff

captaincoffee Pillar of the Community United States 600 Posts	Posted 07/24/2020 11:13 pm Maybe someone from Delaware was planning to make jewelry out of it originally? Or could be someone was bored and played with a dremel tool. Report this Post to the Staff
Adam_E Pillar of the Community United States 4846 Posts	Posted 07/25/2020 12:28 am The copper core has been eaten away with nitric acid IMO Report this Post to the Staff
Ty2020b Pillar of the Community United States 4680 Posts	Posted 07/25/2020 01:26 am Report this Post to the Staff
John1 Moderator United States 56855 Posts	Posted 07/25/2020 07:32 am to CCF. It is acid damage. John1 Report this Post to the Staff
Coinfrog Bedrock of the Community United States 94367 Posts	Posted 07/25/2020 10:41 am to the CCF! Report this Post to the Staff
beader1986 New Member United States 1 Posts	Posted 07/25/2020 2:43 pm Thanks! Report this Post to the Staff
jbuck Moderator United States 188191 Posts	Posted 07/27/2020 1:01 pm Interesting find. A good learning piece. to the Community! Coin Collector Since 1978 Avatar Old Avatar 7070 Eisenhower Australia Canada World CCF Members on eBay CCF eBay Search Engine Report this Post to the Staff
coin searching Valued Member United States 182 Posts	Posted 08/22/2020 5:45 pm Didn't know acid can do that to coins. Thanks for the info. Report this Post to the Staff
Delawarefirst New Member United States 3 Posts	Posted 08/23/2020 1:38 pm You used to be able to get acids in the drugstore, and I experimented a lot as a kid. They used to sell "Coin-Date" to bring up dates on Buffalo nickels (Nitric Acid?). Somewhere I have a Whitman board with an almost-complete set of Buffalos with "restored" dates. Hydrochloric and sulfuric acids will dissolve copper, time depending on the strength of the acid. The copper-nickel exterior of a modern US coin will discolor, but resist the acids. Crime lab scientists can bring up serial numbers of firearms the same way that you can bring up a nickel date. The acid etches away the softer background and exposes the more compressed metal that has been struck up or punched down into the surface. In the 1960s, collectors wanted their coins clean-looking, and a lot of copper coins were ruined by soaking in vinegar and salt. Ugh! Report this Post to the Staff
	Replies: 9 / Views: 1,366

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